Add migration support with Alembic; implement migration scripts and configuration

main.py

@@ -4,6 +4,7 @@ import sys
 import os
 import auth.api_security as auth
 import time
+import threading
     
 try:
     os.remove("api.log")
@@ -28,6 +29,23 @@ except Exception as e:
 env = os.environ.copy()
 env["PYTHONIOENCODING"] = "utf-8"
 
+#migration
+def run_migration():
+    global migration_done
+    process = subprocess.Popen(
+        ["python", "migration/alembic_scipt.py"],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL
+    )
+    process.wait()
+    migration_done = (process.returncode == 0)
+    with open("migration_status.flag", "w") as f:
+        f.write("done" if migration_done else "failed")
+
+thread = threading.Thread(target=run_migration)
+thread.start()
+
+#cli and api
 log_file = open("api_server.log", "w", encoding="utf-8")
 api_process = subprocess.Popen(
     ["fastapi", "dev", "api_server.py"], 
@@ -40,6 +58,9 @@ cli_process = subprocess.Popen([sys.executable, "cli.py"])
 api_process.wait()
 cli_process.wait()
 
+time.sleep(60)
+os.remove("migration_status.flag")
+
 # automatic durataion validation check
 while True:
     time.sleep(300)